Fabric printer ribbon with nigrosine ink

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

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Details

4002411, 4002413, 428226, 428229, 428257, B32B 700

Patent

active

050843338

ABSTRACT:
A printer ribbon having nigrosine dye with hydroxide counter ion, preferably at 23% by weight, in an oleic acid vehicle to form an ink saturating a fabric. The ribbon has the long life of a dye-only fabric ribbon and is effective for both correspondence and bar code applications.

REFERENCES:
patent: 3908063 (1975-09-01), Rosendale et al.
patent: 4361843 (1982-11-01), Cooke et al.
patent: 4624709 (1986-11-01), Otsuka
patent: 4822418 (1989-04-01), Lin et al.

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